<?php

//取时间戳
function Gettime(){
    list($msec, $sec) = explode(' ', microtime());
    $msectime = (float)sprintf('%.0f', (floatval($msec) + floatval($sec)) * 1000);
    return $msectime;
}

//获取IP地址  
function get_ip($type = 0,$adv=true) {  
    $type = $type ? 1 : 0;  
    static $ip = NULL;  
    if ($ip!== NULL) return $ip[$type];  
    if($adv){  
        if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {  
            $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);  
            $pos = array_search('unknown',$arr);  
            if(false !== $pos) unset($arr[$pos]);  
            $ip = trim($arr[0]);  
        }elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {  
            $ip = $_SERVER['HTTP_CLIENT_IP'];  
        }elseif (isset($_SERVER['HTTP_X_REAL_IP'])) {  
            $ip = $_SERVER['HTTP_X_REAL_IP'];  
        }elseif (isset($_SERVER['REMOTE_ADDR'])) {  
            $ip = $_SERVER['REMOTE_ADDR'];  
        }  
    }elseif (isset($_SERVER['REMOTE_ADDR'])) {  
        $ip = $_SERVER['REMOTE_ADDR'];  
    }  
    // IP地址合法验证  
    $long = sprintf("%u",ip2long($ip));  
    $ip   = $long ? array($ip, $long) : array('0.0.0.0', 0);  
    return $ip[$type];  
}  
  
//获取客户端浏览器  
function get_browsers(){  
    $sys = $_SERVER['HTTP_USER_AGENT'];  //获取用户代理字符串 
    return $sys; 	
}  
  
//获取客户端操作系统  
function get_os(){  
    $agent = $_SERVER['HTTP_USER_AGENT'];  
    $os = false;  
    if (preg_match('/win/i', $agent) && strpos($agent, '95')){  
        $os = 'Windows 95';  
    }else if (preg_match('/win 9x/i', $agent) && strpos($agent, '4.90')){  
        $os = 'Windows ME';  
    }else if (preg_match('/win/i', $agent) && preg_match('/98/i', $agent)){  
        $os = 'Windows 98';  
    }else if (preg_match('/win/i', $agent) && preg_match('/nt 6.0/i', $agent)){  
        $os = 'Windows Vista';  
    }else if (preg_match('/win/i', $agent) && preg_match('/nt 6.1/i', $agent)){  
        $os = 'Windows 7';  
    }else if (preg_match('/win/i', $agent) && preg_match('/nt 6.2/i', $agent)){  
        $os = 'Windows 8';  
    }else if(preg_match('/win/i', $agent) && preg_match('/nt 10.0/i', $agent)){  
        $os = 'Windows 10';#添加win10判断  
    }else if (preg_match('/win/i', $agent) && preg_match('/nt 5.1/i', $agent)){  
        $os = 'Windows XP';  
    }else if (preg_match('/win/i', $agent) && preg_match('/nt 5/i', $agent)){  
        $os = 'Windows 2000';  
    }else if (preg_match('/win/i', $agent) && preg_match('/nt/i', $agent)){  
        $os = 'Windows NT';  
    }else if (preg_match('/win/i', $agent) && preg_match('/32/i', $agent)){  
        $os = 'Windows 32';  
    }else if (preg_match('/linux/i', $agent)){  
        $os = 'Linux';  
    }else if (preg_match('/unix/i', $agent)){  
        $os = 'Unix';  
    }else if (preg_match('/sun/i', $agent) && preg_match('/os/i', $agent)){  
        $os = 'SunOS';  
    }else if (preg_match('/ibm/i', $agent) && preg_match('/os/i', $agent)){  
        $os = 'IBM OS/2';  
    }else if (preg_match('/Mac/i', $agent) && preg_match('/PC/i', $agent)){  
        $os = 'Macintosh';  
    }else if (preg_match('/PowerPC/i', $agent)){  
        $os = 'PowerPC';  
    }else if (preg_match('/AIX/i', $agent)){  
        $os = 'AIX';  
    }else if (preg_match('/HPUX/i', $agent)){  
        $os = 'HPUX';  
    }else if (preg_match('/NetBSD/i', $agent)){  
        $os = 'NetBSD';  
    }else if (preg_match('/BSD/i', $agent)){  
        $os = 'BSD';  
    }else if (preg_match('/OSF1/i', $agent)){  
        $os = 'OSF1';  
    }else if (preg_match('/IRIX/i', $agent)){  
        $os = 'IRIX';  
    }else if (preg_match('/FreeBSD/i', $agent)){  
        $os = 'FreeBSD';  
    }else if (preg_match('/teleport/i', $agent)){  
        $os = 'teleport';  
    }else if (preg_match('/flashget/i', $agent)){  
        $os = 'flashget';  
    }else if (preg_match('/webzip/i', $agent)){  
        $os = 'webzip';  
    }else if (preg_match('/offline/i', $agent)){  
        $os = 'offline';  
    }else{  
        $os = '未知操作系统';  
    }  
    return $os;   
} 